a man can run a mile in 4 minutes. calculate his average speed in kilometers per hour. show your work (1 mile=1.61Km)

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?

How does a noncompetitive inhibitor reduce an enzyme’s activity?

How many molecules are in 6.0 moles of methane